You can create a new project in two ways:
You can click the [+ New Project] button at the top-right of the dashboard (the screen that shows your grid of projects when you launch the app), or on the big [+ New project] button you'll see next to your projects.
2. You can fork any existing Public project — this will make a new project that's a copy of an existing one. You can try this out by clicking the [Fork] button at any of the animations on https://share.haiku.ai/.